Changes in the content of bioactive substances among Hypericum montbretii populations from Turkey

Çırak, Cüneyt; Radušienė, Jolita; Ivanauskas, Liudas; Jakštas, Valdas; Camas, Necdet

doi:10.1590/0102-695x20142413352

Cited by 17 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present investigation revealed that, P. major is rich in phenolics, tannins and flavonoids compared to that reported by Kobeasy et al [21]. However, the phenolics of P. lagopus was lower than reported in Turkish ecotype [12]; this could be corroborated to the variation in the habitat, climate and/or genetic pool [22,23]. On the other hand, it attained the highest content of flavonoids and saponins compared to P. major and P. squarrosa.…”

Section: Discussionsupporting

confidence: 53%

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

El-Gawad

Mashaly²,

Ziada³

et al. 2015

Egyptian Journal of Basic and Applied Sciences

View full text Add to dashboard Cite

Available online A B S T R A C TPlantago genus has a wide geographical distribution all over the world. It has been widely used in folk medicine for various purposes, where it is used as anti-inflammatory, antimicrobial and antitumor agent. In this research, total phenols, tannins, saponins, flavonoids and alkaloids were determined in Plantago lagopus, Plantago major and Plantago squarrosa.Furthermore, concentrations of 2.5, 5, 7.5 and 10 mg ml −1 of both alcoholic and aqueous extracts were prepared to study their phytotoxic effect on the germination and seedling growth of the noxious weed Bidens pilosa. P. major expressed the highest values of total phenolics, tannins and flavonoids. However, P. lagopus has the highest content of alkaloids. The germination of B. pilosa was completely inhibited under treatment of P. lagopus and P. major methanolic extracts at 7.5 mg ml −1 and 10 mg ml −1 , respectively. However, the allelopathic effect of P. lagopus aqueous extract showed a complete inhibition of B. pilosa germination followed by P. major. The germination inhibition of B. pilosa increased with the increase in the extracts concentration. In addition, both radicle and plumule were strongly inhibited under the same treatment. Our results showed a potent allelopathic effect on B. pilosa that could be valorized in managing this noxious weed as an ecofriendly bio-control method.However, other studies are needed for the identification, characterization of the responsible allelochemicals and for the demonstration of their modes of action. Production and hosting by Elsevier B.V. on behalf of Mansoura University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/).

show abstract

Section: Discussionsupporting

confidence: 53%

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

El-Gawad

Mashaly²,

Ziada³

et al. 2015

Egyptian Journal of Basic and Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The bioactive compounds of natural products, including mushrooms, are known to be influenced by several factors including growth stage [34], season, and abiotic stress [35], to name a few. The variations can be observed within population groups of the same species too, as demonstrated by Cirak et al [36].…”

Section: Discussionmentioning

confidence: 55%

Antibacterial activity of Nepalese wild mushrooms against Staphylococcus aureus and Propionibacterium acnes

et al. 2017

View full text Add to dashboard Cite

The present study aims to reveal the antibacterial potential of the wild mushrooms of Nepal. Despite the recognition of the medicinal potential of the natural resources in this country, a systematic study on the bioactivities of the wild mushrooms is still lacking. Therefore, in an attempt to fill this gap, ethanol extracts of 90 Nepalese wild mushroom samples were tested for antibacterial activity against Staphylococcus aureus and Propionibacterium acnes. Staphylococcus aureus was comparatively more susceptible with Inonotus clemensiae exhibiting the least minimum bactericidal concentration (MBC) of 100 lg/mL. The major compound in I. clemensiae was identified to be hispidin using high resolution liquid chromatography-electron spray ionization mass spectrometry (LC-ESI-MS) and nuclear magnetic resonance (NMR) analyses. Furthermore, the minimum inhibitory concentration (MIC) and MBC values of hispidin were determined to be 25 and 100 lg/mL for S. aureus and P. acnes, respectively. These findings show that the Nepalese wild mushrooms have the potential to be a novel addition to the functional ingredients industry due to their strong antibacterial potential. Keywords Wild mushrooms Á Nepal Á Antibacterial activity Á Inonotus clemensiae Á Hispidin Electronic supplementary material The online version of this article (

show abstract

“…Significant variations were detected in the content of hypericin, pseudohypericin, hyperforin, and several flavonoids as rutin, hyperoside, apigenin-7-Oglucoside, kaempferol, quercitrin, quercetin, and amentoflavone among four wild populations of H. triquetrifolium from Turkey (Camas et al, 2008;Cirak et al, 2011). Accordingly, 5 wild populations of H. lydium (Cirak et al, 2015a), H. montbretii (Cirak et al, 2015b), and H. pruinatum (Camas et al, 2013) and 11 populations of H. orientale (Cirak et al, 2012) were significantly different in the quantity of hypericin, pseudohypericin, hyperforin, adhyperforin, chlorogenic acid, neochlorogenic acid, 2,4-dihydroxybenzoic acid, hyperoside, isoquercitrin, quercitrin, quercetin, avicularin, rutin, (+)-catechin and (-)-epicatechin, and amentoflavone. The results have indicated the importance of the growth localities with different environment characteristics on the expression of secondary metabolites along with the chemical intraspecific diversity of wild Hypericum populations.…”

Section: Growth Sitementioning

confidence: 99%

Factors affecting the variation of bioactive compounds inHypericumspecies

Çırak

Radušienė

2019

Biologia Futura

Self Cite

View full text Add to dashboard Cite

The genus Hypericum (Hypericaceae) consists of 484 species from 36 sections with worldwide distribution in different areas. Turkey is considered as hot spot for diversity of Hypericum genus. Despite numerous publications, Hypericum species still attracted considerable scientific interest due to pharmaceutically relevant secondary metabolites: naphthodianthrones, acylphloroglucinol derivatives, phenolic acids, flavonoid glycosides, biflavonoids, and some other valuable constituents. Phytochemical investigations carried out on different Hypericum species provided highly heterogeneous results. The content of bioactive compounds varies significantly due to many internal and external factors, including plant organs, phenological stage, genetic profile, environmental abiotic and biotic factors, such as growing site, light, temperature, radiation, soil drought and salinity, pathogens, and herbivores attack. The variations in content of bioactive compounds in plants are regarded as the main problem in the standardization of Hypericum-derived pharmaceuticals and dietary supplements. The review discusses the main factors contributing to the variations of bioactive compounds and what kind of modulations can increase quality of Hypericum raw material.

show abstract

Changes in the content of bioactive substances among Hypericum montbretii populations from Turkey

Cited by 17 publications

References 14 publications

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

Antibacterial activity of Nepalese wild mushrooms against Staphylococcus aureus and Propionibacterium acnes

Factors affecting the variation of bioactive compounds inHypericumspecies

Contact Info

Product

Resources

About